As of 2010-2014, the total population of Susitna is 0, which is 51.35% less than it was in 2000. The population growth rate is much lower than the state average rate of 16.17% and is much lower than the national average rate of 11.61%. The Susitna population density is 0.09 people per square mile, which is much lower than the state average density of 1.09 people per square mile and is much lower than the national average density of 82.73 people per square mile. The most prevalent race in Susitna is white, which represent 100.00% of the total population.